Updated: 28 September 2026 · Applies to: CloudLinux OS
"GLib-WARNING: GError set over the top of a previous GError" from yum is caused by an outdated alt-libxml2 package that overrides the system libxml2.
Fix (root)
rm -f /etc/ld.so.conf.d/alt-libxml2.conf ldconfig yum update alt-libxml2